2018 Hyundai Tucson

The contact owns a 2018 Hyundai Tuscan. The contact stated that while her daughter was operating the vehicle, the check engine warning light illuminated, and the vehicle inadvertently decelerated to 30 MPH. The vehicle was taken to the local dealer and the contact was informed that the failure was due to a faulty sensor, which had malfunctioned when the oil change was due. The contact stated that the failure had occurred on several occasions when the oil change was due. The vehicle was not yet repaired. The manufacturer was not yet notified of the failure. The failure mileage was 30,000. The VIN was not available.

The oil plug fell out of my Tuscon while I driving on the highway and it burned out my entire engine on January 2, 2023, at approximately 5:40 pm EST. The tech at the dealership found the plug in the tray under the spot where the plug goes. It was inspected by a technician at a Hyundai dealership. The car is a 2018 Tuscon--had less than 55,000 miles on it and is now basically worthless and undrivable, quoted $13,000 to fix it. My entire engine now needs to be replaced. I was within the lifespan of my last oil change when the plug fell out. A red oil light flickered on and then a battery subsequently came on. Within approximately three minutes of the light first flickering on, the car was dead on the side of the highway. The car would not turn over once it was stopped on the side of the highway. The car is still at the dealership and available for inspection as of today, but I am not sure how long it will be there because I am not sure what is the best path forward in terms of repair because of the financial cost. I'm lucky that I was able to navigate my car onto the shoulder of the highway and secure a tow without injury. It was a very foggy day and it was already dark when this occurred and I was afraid I would be struck if I exited my car. My car drifted to a stop at the start of an exit ramp with a highway barrier that prevented me from going farther right onto the shoulder.

When driving at night and low-beams are on, there is a black void (looks like a black bar horizontally across the headlight projected area on roadway). Black void is eye level with driver’s view of the roadway. With the black void present, driver is unable to see the roadway clearly at night, which inhibits the drivers visibility and ability to see road hazards or animals crossing the road. Low-beam and high-beam bulbs have been replaced and checked for any burn spots or malfunction in the bulb itself; with brand new bulbs installed professionally, the black void is still present. Hyundai repair stated it is a known issue that has yet to be addressed by Hyundai Manufacturers. Issue has been present for 2-months now. While driving on interstate, went to pass a vehicle and while accelerating the vehicle would not increase in speed. The RPM needle jumped to 5-6 and a “whiny” noise was coming from engine area. Pressed harder on the accelerator so the car would speed up and with the pedal to the floor, the vehicle speed increased 1 mph in 5-sec intervals. Exited the interstate and was traveling on road with 60mph speed limit. Tried to accelerate again, and the vehicle would make the whiny noise and would not increase speed or shift. Let off of the accelerator and the RPM drops instantly to 2-3. RPM’s need does not smoothly increase or decrease, but instead jumps or drops instantly. When accelerator is pressed or when trying to increase speed, the whiny noise comes from engine. The vehicle sounds and acts like it is not shifting. Took to dealership and they said there are no recalls on transmission, but will not fix my transmission. 10-year/100000 mile warranty is still active, as it is a 2018 w/ 89500 miles. Safety concern as the vehicle will not accelerate or shift when needed and could cause serious accident if in a situation where evasive action is required.

Engine (1.6-liter turbocharged direct-injection four-cylinder) had a catastrophic failure driving along highway. Engine instantly lost power and stalled. No indicators on instrument cluster prior to engine stall, temperature gauge for coolant indicating nominal conditions. Upon pulling over to the side of the road, check engine & batter indicator lights shown on the instrument cluster. Hyundai's roadside assistance system, Bluelink, did not activate with the engine's stall. It was observed that a mix of antifreeze and oils were dripping behind the engine onto the ground. Dealer later discovered that a piston connection rod had punched through the wall of the engine block. Dealer has submitted issue to Hyundai Corporate. Vehicle is aggressively service with manufacture dealerships according to recommended service intervals with synthetic fluids.

Leaving a parking lot, vehicle was hard-shifting at 10mph, 20mph, 30mph and was not gaining typical acceleration. Every slow down or stop sign/stop light this behavior continued with automatic hard shifting between gears and lethargic acceleration to the point where I felt this may cause an accident or cause another vehicle to have an accident due to lag response of my vehicle. Upon home arrival, I attempted to back vehicle into my parking spot but after shifting into Reverse, the R indicator on console was flashing but vehicle would not move. I drove back around the complex parking circle and again attempted to back vehicle in to a different parking space but experienced the same issue where R indicator was flashing but vehicle would not back up. My daughter and 2 grandsons then had to push my vehicle back in to the parking spot. I turned vehicle off, waited approximately 90 seconds and restarted the engine. When I shifted into Reverse gear, the car abruptly and harshly shut down. At that point, I put the vehicle back into Park gear and turned off ignition. Had the vehicle towed to closest dealership on Nov 28th - they have not been able to replicate issue nor find any fault codes when running diagnostics. No dashboard errors appeared, only the flashing Reverse indicator light on shift console. No prior issues earlier in the day when using vehicle, nor has this issue occurred in the 4 years I have owned it. It was severe enough I wasn't sure the vehicle would clear intersections in a timely manner, and worried it may leave myself and my daughter and grandsons stranded on the 20 minute ride to home.

The component or system failing is the brake system. When applying the foot to the brake pedal, sometimes it goes to a very low level. The problem was reproduced with the service technicians of a dealer. They made a maintenance service (break flush) to the brake system. Problem seemed to be solved, but it came back again. The mileage between the first service and second service was 1,591 miles. In the second service, technicians made inspection to the brake pads, they were found within parameters. Test drive was made, and the problem was not reproduced. Not sure if they made additional service. After few weeks, the problem repeated again. This is an intermittent problem. Sometimes occurs, but not always. No warning lamps or indicators present at the time the problem occurs.

The headlight and taillight/break lights burn out constantly. Turns out taillights are melting in socket. My car is not uniquely affected. Many are having same problems. Suddenly losing lights while driving on freezing dark roads. Incredibly unsafe. Not isolated to my car. Very dangerous. The company should replace these sockets and reimburse for the bulbs which have been replaced approximately 6 times in 12 m.

I went to get an oil change on Sept 3, 2022. After that oil change my car went back to normal but started to slow down in speed. On my way home my vehicle stalled. The more I drove the slower it got and loud grind it would make. My vehicle stalling could've caused an accident. My vehicle had a recall done March 21, 2021, which after Sept 7, 2022, I received a letter for a recall for a sensor for my vehicle that was issue per Hyundai website March 31, 2021. Hyundai has been able to confirm the issue. Only thing warning sign I received was my vehicle cut off the day I got the oil change Sept 3, 2022. We thought it may have been my battery.